5 Northeast US States Vote in Primaries Tuesday

Precinct volunteers look over paperwork at a polling station at Watkins Mill Elementary School in Montgomery Village, Maryland, April 26, 2016.

Voters arrive at a polling station, in Philadelphia, Pa., April 26, 2016. Pennsylvania is one of five Northeast U.S. states voting in presidential primaries Tuesday.

A volunteer with the African-American Democratic Club of Montgomery County, Maryland, is ready to hand out information on local politicians as voters approach the polling station at Watkins Mill Elementary School in Montgomery Village, April 26, 2016.

Carmen Carrión leaves a polling precinct wearing a Spanish language "I voted" sticker, Philadelphia, Pa., April 26, 2016.

Luisa Baerga leaves her polling station with her 9-year-old son Javier, who was given a "vote" donut, Philadelphia, Pa., April 26, 2016.

A woman enters a curtained voting machine at a polling station, in Philadelphia, Pa., April 26, 2016. Pennsylvania is one of five Northeast U.S. states voting in presidential primaries Tuesday.

Voters arrive at a polling station at Watkins Mill Elementary School in Montgomery Village, Maryland, April 26, 2016.